Throw-off mechanism for ribbon looms



Nov. 20 1923. 1,475,047

, .Laar-:sca

THROW-OFF MECHANI'SM FOR RIBBON LOOMS v Filed web.v 14. 1,922

Patented Nov. 2G, 1923.

U ti'ED STATES Josnrn simsen, or nosEiuoNr, lvnw JERSEY.

THROW-OFF MECHANISM FOR- .'RIBBON LOOMS.

Application filed February 14, 1922. Serial No. 536,604.

To all w hom 'it may concern Be it known that I, JOSEPH BRESCH, a citizen of the United. States, residing at Rosemont, in the county of Bergen and State of New Jersey, have invented new and useful improvements in Throw-Ofi Mechanism for Ribbon Looms, of which the following is a specification.

This invention relates to throw-off mechanism for ribbon looms and the principal object is to provide means whereby smashings may be prevented.

Another object is to produce a device which will act instantly when anything goes wrong in the weaving, and will immediately effect a stopping or shutting down of theentire loom.

Another object is to produce a device of this nature which shall be simple of construction, cheap to manufacture, and highly eiicient for the purpose for which it is designed.

`With these and other objects in view, the invention resides in certain novel construction, and combination and arrangement of parts, the essential features of which are hereinafter fully described, are particularly pointed out in the appended claims, and are illustrated in the accompanying drawing, in which:-

Figure 1 is a side `elevational view of my improvement.

Figure 2 is a top plan view of the same.

Figure 3 is an end elevation of the same.

Like characters of reference refer t-o like. parts in all views.

Referring to the drawing in detail, 10 represents a wheel driven by a belt 11 operable from any suitable source of power, Ythe. wheel 10 being arranged to frctionally drive wheel 12. The wheel 12`operates to cause the movements required in the loom. A link 13 connects the wheel 12 to a depending member 111 which is connected as at 15 with what is termed the Lbattenr16. Mounted on the batten 16 is a rack bar 17 the racks of which operate the shuttles. All of this mechanism is old and well known in the art. The batten is moved back and forth by the mechanism above described and. at the same time by means not shown but which are well known in the art, the rack bar 17 and its racks are moved at right angles to the movement of the batten.

A pin 18 is secured to move with the rack bar 17 and partakes of the movements of both the rack bar and hatten. The degree and size or this'curve is diiierent in diiierent machines and for different widths of ribbon, A blockv 19Vis provided which has the curvilinear contour of the'movement of the pin 18 but is arranged a slight distance away from said pin. Fingers 20 extend 'from the .curved periphery of the block 19' so as to 'the bottom of a brake member 31 carrying at its upper end any suitable braking means 32 adapted to contact with the peripheries of bothwheels 10 and 12. A weight 33 is connected to the member 31 for driving it home when the trigger is released, and a spring 34 assists in this action and prevents any back lash.

In operation when anything goes wrong in one of the shuttles the rack 17 will stop, and through movement of the batten 16 will bring the pin 18 against the member 19 or one of its pins 2O sopas to move the arm 21 against the tension of spring 23. This pulls on link 24 and line 25 and unhooks the trigger 26 whereupon the weight' 33 and spring 34 drive the brake member 31 between the wheels 10 and 12 therebystopping .them instantly and the belt 11 throws itself from the wheel 10. l

While l have described what .l deem to be the most desirable embodiment of my invention, it is obvious that many of the details may be varied without in any way departing from the spirit of my invention, and I therefore do not limit myself to the exact details of construction herein set forth nor to anything less than the whole of my invention limited only by the appended claims.

What is claimed as new is 1. In a device of the class described, th combination of a pin for operation-by a moving part of a loom, mea-ns for imparting a compound movement to said pin, a block having one ofV its faces provided with a curved surface, hingedly mounted supporting means for said block, a spring for holding said supporting means in operative position, a trigger operable by said supporting means, a brake device, and driving mechanism for said loom adapted to be rendered inoperative by said brake device upon the releasing of said trigger.

, 2. In a device of the class described, the combination of a pin for operation by a moving part of a loom, means for imparting to said pin a compound movement, a block having one of its -faces provided with a curved surface, hingedly mounted supporting means for said block, a spring for liolding said supporting means in operative position, a trigger operable by said supporting means, a brake device, a Weight connected to said brake device, a spring connected to said brake device, and driving mechanism for said loom adapted to be rendered inoperative by said brake device.

3. In a device of the class described, the combination of a pin for attachment to the rack bar of a loom, a hingedly mounted lock adjacent said pin, a plurality of pins projecting from said block and at right angles to said irst mentioned pin for co-action With each other, a trigger operable by said block, a brake device operable upon the releasing oif said trigger, and driving mechanism. for said loom adapted to be rendered f signature. Y

JOSEPH BRESCH. 

